| Term | Definition |
| bar graph | a graph that uses bars to display data |
| median | the number exactly in the middle of a set of data |
| numerical variable | a variable whose values are numbers |
| values | possible outcomes for variables |
| average | a value used to represent a set of numbers |
| vertical axis | the y axis on a gragh going from top to bottom, the left side |
| variable | an attribute or quantity that may have one or many values |
| catagorical variable | a variable whose values are not numbers |
| horizontal axis | the X axis on a graph that is going side to side, the bottom |